Microstructure, electromagnetic and microwave absorbing properties of plate-like LaCeNi powder
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La1−xCexNi5 (x = 0, 0.05, 0.10, 0.15) powders were prepared by arc melting and high-energy ball milling method. The structures and morphologies of LaCeNi powders were evaluated by X-ray diffraction and scanning electron microscopy. The saturation magnetization and electromagnetic parameters of the powders were characterized by using vibrating-sample magnetometry and vector network analysis, respectively. The results reveal that the La1−xCexNi5 (x = 0, 0.05, 0.10, 0.15) powders consist of LaNi5 single phase with different Ce contents. With the increase of Ce content, the particle size decreases and the saturation magnetization increases. The reflection-peak frequency shifts to lower frequency region upon Ce concentration. The minimum reflection loss and reflection peak frequency, for the sample with coating thickness of 1.8 mm, are − 19.7 dB and 8.16 GHz, respectively.
This work was supported by the National Natural Science Foundation of China (No. 51361007), Guangxi Key Laboratory of information materials (No. 161010-Z and 171016-Z) and Guangxi Key Laboratory of Wireless Wideband Communication and Signal Processing (No. GXKL06170107).
- 15.X. Guo, S.C. Li, L. Wang, Y.W. Li, Effect of rare earth element substitution for vandium on structure and electrochemical characteristic of Ti0.26Zr0.07V0.24Mn0.1Ni0.33 hydrogen storage alloys. Chin. J. Inorg. Chem. 30(9), 2019–2024 (2014)Google Scholar
- 17.G.F. Mi, Y.L. Liu, H.J. Gong, H.Z. Fu, Effect of rare earth La and Ce on microstructure of ZL201 alloy. J. Henan Polytech. Univ. 28(1), 107–112 (2009) (in Chinese)Google Scholar
- 18.Z.Q. Zheng, H.Y. Li, Rare earth functional materials (Chemical Industry Press, Beijing, 2003), pp. 28–35Google Scholar
- 19.S.B. Liao, Ferromagnetic (part II) (Science Press, Beijing, 1988), pp. 3–90Google Scholar